Changelog for comming commit:

• fixed crashing when clicking wrong, caused by an lost pointer on a StdMultiWidget

• ListView is able to view timesteps (4D) as well. The tooltip and a small label show the change of the timestep.

• the QmitkPointListView reacts on the mouse wheel event by changing the current timestep. The event has only effect, when the PointSet holds points with diffrent timesteps

• a small context menue was implemented

[SVN revision 25370]
FIX (#4947): fixed crash caused by a not referenced pointer on the stdMultiWidget

[SVN revision 25373]
COMP (#4947): Added two icons for the move buttons

[SVN revision 25374]
COMP (#4947): fixed warnings

[SVN revision 25376]
COMP (#4947): try to fix failed test

[SVN revision 25377]
COMP (#4947): fixed warnings

[SVN revision 25378]
COMP (#4947): fixed warnings

Found a bug, that the interactor will be unchanged if a point is deleted by the list. I will change it to send an event to interactor rather than to pointset.
+ For this a change in PointListModel is necessary: it needs to hold a smartpointer onto the node to also access the interactor.
+ Furthermore change to not instanciate a new interactor on OnBtnAddPoint but to check if there already is one. Only to create a new in case there is none.
+ Update of widgets on loading new points.
+Remove crash on startup of PointSetInteraction bundle due to segfault

[SVN revision 25519]
FIX (#4947): change a member within PointListModel from mitk::PointSet to mitk::DataNode to also access the interactor. By this change, removing a point via interactor is possible and thus statemachine is not corrupted as before. See T4947 for further documentation

PointListWidget still has a bug: Warning of multiple selected points is displayed if points are selected in widget and then selected in list. Selection of multiple points is a bug! Check to not by-pass the interaction mechanism.

Another Bug: Selecting a point in the list, then moving the same point by mouse interaction and then pressing Del-key doesn't delete the point. It works if the point was selected by mouse.

[SVN revision 25765]
ENH (#4947): Adding support to delete points if no interactor is set to node. See T4947 for further documentation

initial 4D pointset interaction for Widget

[SVN revision 25800]
FIX (#4947): the observer wich observes the delete event of the pointsetnode will now be removed in the destructor.

*Temporal management bug: one timestep to many is shown (data contains timesteps from 0-3 and Widget from 0-4).
*Bug: when removing a pointset from data storage, the button for interaction is still activated. Deactivate on setNewNode

Currently the PointListWidget crashes while trying to set an image fiducial.

m_MultiWidget in QmitkPointListWidget::OnBtnAddPoint() causes the problem. The variable m_MultiWidget is set but only partly initialized...

[SVN revision 26382]
FIX (#4947): Fixed the crash caused by the PoinListWidget in the FiducialRegistrationWidget. The StdMultiWidget has to be set before a PointSet gets passed to the PointListWidget. Also an expander was removed in the view for a clear look.

[SVN revision 26384]
COMP (#4947): Changed initialization order.

The FiducialRegistrationWidget doesn't have a pointset at start.
If the PointListWidget doesn't hold a PointSetNode, all buttons except the save button is disabled. Clicking on it causes a crash.

[SVN revision 26637]
FIX (#4947): Same problem as in the FiducialRegistrationWidget (see revision 26382) was solved here. Before passing a PointSetNode to the PointListWidget the MultiWidget needs to be set.